Attachment for can-headers.



PATENTED SEPT. 8, 1903.

GAN HEADERS.

ATIAGHME Ne'E' FOR.

ABBLIQAm-on mum no. a, 1902 WITNESSES.

b sy Q ATTORNEYS.

R. D. TOWNSEND.

PATENTED SEPT. 8, 1903.

ATTACHMENT FOR CAN HEADERS.

N0 MODEL.

WITNESSES.

APPLICATION FILED DEO|1 6| 1902.

2 SHEETS-SHEET 2.

ATTORNEYS,

Attachment for Gan-Headers, of which the Patented September 8, 1903.

PATENT OFFICE.

ROBERT D. TOWNSEND, OF CHICAGO, ILLINOIS.

ATTACHMENT FOR CAN-HEADERS.

SPECIFICATION forming part of Letters Patent No. 738,642, datedSeptember 8, 1903.

Application filedDecemher 6, 1902. Serial No. 134,119, (No model.)

I To all whom it may concern:

of Chicago, in the county of Cook and State of Illinois, have in venteda new and Improved following is a full, clear, and exact description.

Heretofore the commercial can-header has been made in as many differentsizes as there are difierent sizes of cans to be manufactured.

The object of this invention is to provide an attachment which may beplaced on the machine, thus adapting it to any desired size of canWithout reorganizing the entire machine. This enables one machine by avery simple adjustment to be adapted to any size of can, and in smallfactories it will to a great extent reduce the cost of equipping,maintaining, and operating the plant.

The invention is applicable, for example, to machines of that classshown in the patent to Wheaton, No. 47 7 ,584, dated June 21, 1902, andwhich consists in providing for the heads or jaws (see Fig. 5 of thepatent above re- "ferred to) a ring placed removably in position. Byconstructing a number of these rings of diiferent internal dimensions,but of equal external dimensions, by merely displacing and emplacing thedifierent rings the machine may be changed to-operate on cans ofdifierent sizes.

This specification is an exact description of one example of myinvention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure l is a front elevation of the head or jaws referred to above.Fig. 2 is a section thereof on the line 2 2 of Fig. 1. Fig. 3 is a sideelevation of the head. Figs. 4, 5,

- and 6 are elevational views of different sizes are received thesupporting-rods. On the main section A the top swinging section B is'mounted by means of pivots I). These parts A and B have matchingsemicircular portions forming a seat for the can end, all of which iscommonly known in the art; Now in order to vary the interior area ofthis seat, so as to suit the heads of cans of various sizes, I providethe sectional ring'C, the same being made in sections, so as to befastened, respectively, to the parts A and B, and when the head isclosed these sections form a complete annulus. It is clear that byconstructing a number of these rings or annuli of varying internaldiameter, but of uniform external diameter, by the mere substitution ofone ring for another the machine may be adapted for cans of any size.The ring-sections are re'movably secured in place, and this ispreferably effected by fastening to the sectionslongitudinally-extending dowel pins or keys 0, these being held in placeby having pins 0 passing transversely across the dowels and into therings. The sections A and B of the head are recessed, as indicated at aand'b, respectively, so that the pins or dowels 0 may befitted snuglytherein. This will hold the rings securely in place, yet permit theirready removal by Withdrawing the sectionsaxially of the head. In orderfurther to secure the rings in place, fastening-screws -E are provided,these being passed through the sections A and B and engaged with theringsections, as indicated in Fig.1.

The form of the invention here shown illustrates a header for roundcans. It is obvious that the invention can be used equally on cans ofangular forms, and it should be understood that the term ring as hereinemployed is intended to embrace constructions for cans of anycross-sectional shape.

Various changes in the form, proportions, and minor details of myinvention may be resorted to at will without departing from the spiritand scope thereof. Hence I consider myself entitled to all suchvariations as may lie within the intent of my claims.

Having thus described my invention, I claim as new and desire tosecureby Letters Patent- 1. In a can-header, the combinationwith thehead or jaws, of a ring adapted" to be fitted therein, and dowel-pinsfastened to the ring and adapted to engage the head, removably to holdthe ring in place, said dowelpins being secured to the outside of thering dowel-pins extending parallel with the axes of the rings, and thehead or jaws being recessed to receive the projecting portions of thedowel-pins. l 5

In testimony whereof 'I have signed my name to this specification in thepresence of two subscribing Witnesses.

and extending parallel therewith and the said head being recessed toreceive the projected portions of the dowel-pins.

2. A can-header, having a head or jaws, a

5 plurality of rings of equal exterior and of varying interior diameter,for the purpose specified, any one of said rings being capable offitting securely in the head or jaws, and ROBERT D. TOWNSEND. dowel-pinsfastened tothe outer sides of the Witnesses: ro ring and adapted toengage the head or jaws THOS. KENT,

removably to hold the rings in place, said S. BURRIs.

